Yohji Yamamoto left after receiving Fang Yuan’s message.

He does not need to stay in Chang'an City and can cooperate after returning to Japan.

Cooperation between the two parties is not a matter of today or tomorrow, but a matter of one day in the future.

It is very likely that the envoys from all countries returned to their own countries, leaving Jieli Khan and Murong Fuyun.

The two were placed under house arrest in Chang'an City, and half of Jieli Khan's original treatment was directly given to Murong Fuyun, without the previous treatment.

In the past, Li Shimin was worried that the old Eastern Turkic tribes would not obey discipline and cause chaos. Now that the Tang Dynasty has fire guns, there is no need to worry too much about that problem.

After the envoys from various countries left, the Tang Dynasty resumed construction again.

During this period, Li Jing's army and Li Ke's army came back one after another, and all foreign armies came back.

The imperial court praised them. The formation was quite large and attracted the attention of the people in the city.

With Li Ke's return, his reputation has become even greater, and he has become the most suitable candidate to be the prince.

Someone actually wrote to Li Shimin to make Li Ke the crown prince.

Time flies and more than half a month passes.

On this day, the Japanese envoy Yamamoto Yohji appeared again and found Fang Yuan privately.

"Master Fang, I'm here again."

Yohji Yamamoto said with a flattering smile.

"How?"

Fang Yuan asked directly.

"The Emperor has agreed that Datang can send troops at any time."

Yohji Yamamoto continued to say with a flattering smile.

"You wanted to buy eight thousand fire blunderbuss before, so the Tang Dynasty will also send eight thousand troops, no problem."

Fang Yuan nodded.

Eight thousand fire cannons can withstand three or four times the number of troops.

Calculated, it didn't have much effect, but Japan was really fighting, and eight thousand muskets were almost enough.

"This...can you give me a little more, another ten thousand?"

Yohji Yamamoto said.

"Another ten thousand?!"

"It's not impossible, but provide food and grass in advance."

Fang Yuan frowned, thought for a while and said.

In order to realize your own ideas, even ten thousand more is not a problem.

Relatively speaking, the greater the number of people, the greater the chance of destroying Dongying.

"This is natural."

"Master Fang, do you have any other questions?"

Yohji Yamamoto was overjoyed and said excitedly.

"The Fire Gun Army is only a vanguard army."

"According to normal circumstances, if it is found that Dongying's army has not followed up, the Fire Gun Army will no longer cooperate with Dongying."

Fang Yuan said in a deep voice.

The most suitable thing for the Fire Gun Army is to be a vanguard army.

This way you won't kill the wrong person when killing enemies.

"Okay."

Yohji Yamamoto thought for a while and nodded.

For Dongying, it is natural to hope that Datang will exert more efforts.

But Datang is not stupid either. It is willing to be a vanguard, but will not do so unconditionally.

"When a month's supply of food for 20,000 troops arrives, the Tang Dynasty will send troops."

Fang Yuan said in a deep voice.

"Does the food come first?"

"Shouldn't the Tang army go to Dongying first and then give?"

"In this way, we don't have to waste time traveling back and forth for food."

Yohji Yamamoto said in confusion.

"It's a waste of time, but this will protect both you and me."

"My army will not enter your Dongying, and your Dongying will ensure that my food is safe."

"It's only a few days starting from the waterway."

Fang Yuan smiled slightly and said.

If the food does not arrive first, who can guarantee whether Dongying will be left empty-handed?

"That's right, that's right."

Yohji Yamamoto nodded repeatedly.

It would be better if Tang Jun did not go to Dongying Island, so as to save himself and others from being unable to sleep.

"Then I'll wait for your news."

"Also, let me add that if the war is not over in a month, please prepare the food for the next month half a month in advance."

Fang Yuan thought for a while and said.

"It should be so."

Yohji Yamamoto smiled apologetically.

After bidding farewell to Fang Yuan, his expression changed.

After returning to China, Dongying tested the firecrackers.

Who knows, nine times out of ten there will be something wrong, with the chamber exploding and other problems.

I asked Datang why it gave such rubbish, but the reply I got was that the Fire Gun of Datang is like this now.

For this reason, both Dongying and Tubo had no choice but to accept that outcome.

More than half a month after Yamamoto Yohji left, the grain was transported by ship to the Weishui port of Datang.

After confirming that there was no problem with food, Fang Yuan asked Li Shimin to mobilize the army.

The rest is naturally not decided by Fang Yuan.

As soon as the 20,000 fire gun troops took a boat to Dongying, Gao Tianzhi arrived again.

"Master Fang, do you still remember my request?"

Gao Tianzhi came to Fang Yuan secretly because of what he had said to Fang Yuan before.

This time when he returned to China, he was impeached by the eldest prince and the second prince because most of the fire guns were defective.

Originally, Fang Yuan and Datang should be blamed for these things, but Gao Tianzhi didn't dare. He still needed Fang Yuan's help.

And from another perspective, domestic firepower is bad, and it will be more conducive to one's own future power.

"Of course I remember."

"How many people do you need?"

Fang Yuan is waiting for Gao Tianzhi to come over.

His thoughts on Dongying included Goguryeo.

When Dongying attacked Baekje, he helped Gao Tianzhi seize the power of Goguryeo.

After Gao Tianzhi seized power, Dongying's struggle for hegemony also came to an end.

At that time, we will use Goguryeo and Goguryeo's terrain to attack Dongying together with the 20,000 troops sent out earlier.

There will be no problem if Dongying dies.

"Three hundred!"

Gao Tianzhi said in a deep voice.

He still has support in the country.

And he is not rebelling, just a palace change.

All you need to do is seize the power of the palace, kill the eldest prince and the second prince, and obtain the succession rights from the king.
To be continued...